IV.B.2.b).(1) Resident scholarly projects should include one of the following: laboratory. research, clinical research, case reports, or evidence-based analysis of disease. processes, imaging techniques, or practice management issues.
The migraine with which the lay public is familiar involves headache and sometimes involves having a warning called an aura. The aura can be many things. Most commonly, it is a transient visual disturbance such as zigzag lights, halos, bright spots, and associated dimness of vision which may last 5-30 minutes.
1 Clusters are separated by headache-free intervals lasting at least 2 weeks. Clusters usually last 2 weeks to 3 months.  Chronic cluster headaches are defined as those that occur for more than 1 year without remission (intervals in which headaches do not occur) or with remissions lasting less than 2 weeks.